Mixing and wetting device is also called ink flushing and wetting device. The main feature is that the same printing roller is used to moisten the printing plate, water and ink are supplied to the printing plate at the same time. Heidelberg, Manroland, KBA and many other well-known brand presses have adopted this device, which is easy to achieve ink and water balance.
Offset ink balance refers to the use of the least amount of ink and water under the premise of ensuring the color reproduction, gray balance, color density and tone value to meet the requirements of the customer under a certain printing speed and printing pressure.
According to the actual situation of ink-water balance, in order to prevent dot gains and blank areas from being protected, the amount of ink in the printing area is also large, and the amount of ink and the volume of the entire roller before the pressure is applied by the printing roller that transfers ink and transfers water. Consistent. After a few revolutions of the platen roll, the amount of ink on the roll will change, as shown in Figure 4. According to the principle of oil and water incompatibility, the water absorption of the ink on the rubber roller is poor, and the amount of water absorbed is small. On the contrary, the amount of ink absorbed in the ink is low. Therefore, the left side of the plate roller absorbs a large amount of water, and the left side of the plate is an area where a large amount of ink is supplied, so that the ink balance required for printing is achieved.
Mixed moistening device is easy to form a proper ink emulsification, the blank part is also easy to stick dirty, in fact, the graphic part and the blank part of the printing plate used in the offset printing are in the same plane, the graphic part is oil- and water-repellent, and the blank part is hydrophilic and oil-repellent. Therefore, when the plate roller is in contact with the printing plate, the blank part absorbs water, the graphic part absorbs ink, and the blank part does not become dirty. Due to the force exerted by the ink during transmission, the ink will produce mild emulsification. This emulsification is also required for printing, and it will not cause emulsification failure because the content of water in the ink (fountain solution) is low and will not exceed the criticality. value.
Source: "Printing Technology"
Electric Height Adjustable Stand Desk
Electric height adjustable stand desk is very popular. This series of Standing Desk is very easy to use and perfect for many people. A good electric height adjustable standing desk can minimize the harmful effects of sitting too long for bodies.
It's not a ordinary desk, It is a amazing height adjustable desk. You can sit and stand while working from home or in office room. This standing desk is adjustable in height and length and suitable for different height people in a family or office.
The best electric height adjustable standing desk actually be beneficial to body's health who work on their computers all day. Sitting and standing working style alongside taking breaks, getting your legs and spine moving, promotes healthy blood circulation and staying active in general – as well as alternating between sit and stand, these productivity stations can certainly make a difference.
We have many series of best standing desks to help point you in the right direction. Whether you want something that's high-end and elegant, special designed, affordable, or a Gaming Desk , there's something on our products list to suit your comfort and wellness needs. We offer the best standing desk, Sit Stand Desk, gaming desk, Height Adjustable Desk and office exercise bike to make your work experience healthier.
Electric Height Adjustable Stand Desk, Electric Standing Desk, Standing Desk Electric, Standing Desk Electric Height Adjustable
Foshan Hollin Furniture Co.,Ltd , https://www.china-hollin.com